Yes, I ran the Audyssey EQ with my 805 connected to A1400 connected to 7 speakers (8 counting double center ion parallel). It was a single pass (3 seats).
The only reason why I did it (I never like the result of auto-eq) is that after having to move my right M80 closer to the side wall---it was then 12"/12" with a fairly strong toe-in---it felt like a booming hump in the bass. To make sure I was not hallucinating, I ran the auto-eq and the problem disappeared (but then the sound was just off... not to say awfull). I then reset the parameters and tried some manual EQ.
As soon as I confirmed that my ears were not deceiving me (and that they was something wrong at around 90hz), I solved the problem by moving changing the angle with the corner of my right M80---now 9.5"/13" with a less toe-in---until the bass sounded right again. After that, reset everything to normal, confirm with SPL in hand, and voilà! great sound again!
